members. for more on this i'm joined by reuters mexico city bureau chief simon gardner. simon, how high up the hierarchy chain is heriberto lazcano >> right up at the top. he is the leader of the glet as. he has been locked in a bitter battle with the second, if you like, in command of the zetas. much of the bloodshed we've been seeing in mexico in recent months have been due to that feud >> suarez: since the president of mexico in effect declared war on the drug cartels have they ever caught as big a fish as this one? >> he's the biggest fish they've caught so far. i mean this is a coups for called reason. calderon's drug strategy which was to go after the heads of the different drug cartels was criticized by some for having created fragmentation and a deep deepening of violence. yet he is to a certain extent been vindicated today. he said so himself on television. this afternoon. so, you know, for calderon's strategy, which actually hurt his party in recent presidential election and helped boost his opponent or the opponent of his party, he is now, you know, reaping the benefits of this.